How long can 18 year old adults stay in high school? Anyway, I'm surprised that this thread made it to 6 pages. Theft isn't something that we want glorified here by allowing threads to stay in action about it. Whether you want to call it theft or not, you know someone left it there and rather than take it to a place where the owner could retrieve it, you took it. If you need to read the rules again, please do.